Articles with "po4 sio4" as a keyword



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Synthesis and photoluminescence properties of Ca4La6(PO4)2(SiO4)4O2: Dy3+ phosphor with high thermal stability for white light-emitting diodes

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Published in 2020 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-020-03341-7

Abstract: Novel yellow emitting Ca4La6(PO4)2(SiO4)4O2: Dy3+ phosphors were synthesized by high-temperature solid-state reaction method. The crystal structure, diffuse reflection, photoluminescence, and photoluminescence excitation spectra, decay curves, as well as thermal stability were investigated in detail. Under… read more here.

Keywords: 4o2 dy3; sio4 4o2; phosphor; po4 sio4 ... See more keywords
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Highly efficient and environmentally benign method for the synthesis of tetrahydrobenzo[b]pyrans using Ca9.5Mg0.5(PO4)5.5(SiO4)0.5F1.5 as a new bio- and nanocatalyst with Brønsted base and Lewis acid properties

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Published in 2017 at "Research on Chemical Intermediates"

DOI: 10.1007/s11164-017-3092-3

Abstract: Nanosized Ca9.5Mg0.5(PO4)5.5(SiO4)0.5F1.5 was used as a biocatalyst for the synthesis of tetrahydrobenzo[b]pyrans derivatives via one-pot three-component reaction of various aldehydes, dimedone and malononitrile. The reactions were easily carried out at 60 °C under mild and heterogeneous… read more here.

Keywords: ca9 5mg0; synthesis tetrahydrobenzo; tetrahydrobenzo pyrans; po4 sio4 ... See more keywords
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Multichannel luminescence properties and ultrahigh-sensitive optical temperature sensing of mixed-valent Eu2+/Eu3+ co-activated Ca8ZrMg(PO4)6(SiO4) phosphors

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Published in 2019 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2019.01.092

Abstract: Abstract A novel dual-emitting Ca8ZrMg(PO4)6(SiO4): (Eu3+, Eu2+) phosphors with ultrahigh-sensitive optical temperature sensing are prepared by a conventional solid-state method. The Eu2+/Eu3+ co-activated Ca8ZrMg(PO4)6(SiO4) phosphors exhibit efficient dual-mode emissions with an intense, broad blue emission… read more here.

Keywords: temperature; eu2; po4 sio4; ca8zrmg po4 ... See more keywords
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Ca9La(PO4)5(SiO4)Cl2:Dy3+: A white-emitting apatite-type phosphor pumped for n-UV w-LEDs

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Published in 2017 at "Journal of Luminescence"

DOI: 10.1016/j.jlumin.2016.09.060

Abstract: Abstract The Ca9La(PO4)5(SiO4)Cl2:Dy3+ (CLPSCl:Dy3+) powder phosphor with apatite structure has been successfully synthesized via high-temperature solid state method. Single phase in such phosphor was verified through X-ray diffraction (XRD) technique. The Dy ions concentration dependent… read more here.

Keywords: ca9la po4; sio4 cl2; cl2 dy3; phosphor ... See more keywords
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Preparation, luminescence properties and electronic structure of RE (RE=Eu3+,Sm3+,Dy3+)-doped multi-color silico-phosphate Ca15(PO4)2(SiO4)6 phosphors

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Published in 2020 at "Journal of Luminescence"

DOI: 10.1016/j.jlumin.2020.117356

Abstract: Abstract To explore new white-light-emitting luminescent materials, a series of multi-color phosphors Ca15(PO4)2(SiO4)6:RE (RE = Eu3+,Sm3+,Dy3+) were successfully prepared by using high temperature solid-state reaction. The calculated electronic structure used by first-principles method predicts that the matrix… read more here.

Keywords: sm3 dy3; ca15 po4; eu3 sm3; po4 sio4 ... See more keywords

Improved photoluminescence by charge compensation in Dy3+ doped Sr4Ca(PO4)2SiO4 phosphor

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Published in 2019 at "Optical Materials"

DOI: 10.1016/j.optmat.2019.01.041

Abstract: Abstract Single-phased Sr4Ca(PO4)2(SiO4):Dy3+, M+ (M = Li, Na, K) phosphors have been prepared via a solid-state reaction. Their phase structures, photoluminescence (PL), photoluminescence excitation spectra (PLE), and decay curves were studied, respectively. Under ultraviolet irradiation, the Sr4Ca(PO4)2(SiO4):Dy3+… read more here.

Keywords: dy3; sio4 dy3; po4 sio4; photoluminescence ... See more keywords
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Luminescence characteristics of O6+ ion beam and γ-ray irradiated Ca9La(PO4)5(SiO4)F2:Eu phosphor

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Published in 2020 at "Radiation Effects and Defects in Solids"

DOI: 10.1080/10420150.2020.1737696

Abstract: ABSTRACT Fluorapatite Ca9La(PO4)5(SiO4)F2: Eu with variable molar concentrations of Eu3+ (0.05–1.0 mol%) were synthesised by the solid-state reaction method and their photoluminescence (PL), thermoluminescence (TL) characteristics were studied after irradiating the samples with γ-rays and 75… read more here.

Keywords: ion beam; ca9la po4; ion; po4 sio4 ... See more keywords